One of the regulated power supply circuits with over-current and short-circuit protection

This circuit cannot automatically resume operation after the fault is eliminated. To resume work,
press the reset button SB.
    The output voltage of the voltage regulator can be adjusted in the range of 0.2~15V through the potentiometer RPz, and the maximum load current (which
can play a protective role under this current) can be determined by adjusting the trimming resistor RPi. When the VTs is installed with a heat sink and the output voltage
is 15V, the voltage regulator can pass a current
of 1A for a long time , or 2~3A for 30-40min (depending on the air convection conditions of the tube radiator).